ClearOne Converge Pro 8i | 8 Additional Microphones Conferencing Input Expansion Box for Converge Pro 880 840T

SKU: CLO-INTRFCE-910151810 Category:
Brand: ClearOne


Conferencing Audio Expansion Mixer

Professional conferencing – expand conferencing to large rooms with up to 8 additional microphones.

The CONVERGE Pro 8i expands your CONVERGE Pro platform with as many as 8 additional microphones.  Each microphone input includes powerful, ClearOne HDConference processing for true, stereo echo cancellation, full-duplex conversation, and auto mic-mixing intelligence.

Create a professional, yet affordable, large-room conferencing experience that sounds as natural as face-to-face meetings in the same room.

Key Features

  • Proprietary echo and noise cancellation algorithms prevent distracting audio
  • Full-duplex audio means no cutting in and out
  • Automatic gain and level controls adjust mic and speaker levels automatically
  • First-mic priority intelligently focuses mic levels based on who is speaking
  • Adaptive modeling-continuously samples room acoustics for any changes
  • Flexibility/Compatibility
  • Wireless or wired controllers
  • Provides 8 additional microphone inputs for CONVERGE Pro, to give you full coverage of large rooms
  • Add converge COM for direct interface to PC, enterprise telephones or headset sets
  • Integral network management system enables remote configuration, control and monitoring
  • Interoperable with StreamNet AV over IPTM systems

Technical Specifications

Audio Performance
Conditions: Unless otherwise specified, all measurements are performed with a 20 Hz to 22 kHz BW limit (no weighting)
Frequency Response: 20 Hz to 22 kHz ±1dB
Noise (EIN): -126 dBu, 20 kHz BW, max gain, Rs=150 ohm
THD+N: <0.02%
Dynamic Range: 100 dB (non A-weighted)
Crosstalk <-91 dB re 20 dBu @ 20 kHz channel to channel
Auto Mixer Parameters
Number of Open Microphones (NOM)
PA Adaptive Mode
First Mic Priority Mode
Last Mic Mode
Maximum # of Mics Mode
Ambient Level
Gate Threshold Adjust
Off Attenuation Adjust
Hold Time
Decay Rate
Matrix Mixing Parameters
12 analog in/out
18 expansion bus in/out
8 assignable processing blocks in/out
4 assignable fader blocks in/out
Assignable Processing Blocks
Filters: All pass, Low pass, High pass, Low shelving, High shelving, Parametric EQ, Notch, CD Horn
Crossovers: Bessel, Butterworth, Linkwitz-Riley
Compressor: Delay; adjustable up to 250 ms
Assignable Fader Blocks
Microphone Input Configuration
Input Gain Adjust
Mic or Line Level
Phantom Power on/off
Echo Cancellation on/off
Noise Cancellation on/off
Filters: All Pass, Low Pass, High Pass, Notch, PEQ
Mute on/off
Chairman Override on/off
AGC on/off
Automatic Level Control on/off
Auto Gate/Manual gate
Adaptive Ambient on/off
Pre AEC channel
Mic/Line Inputs 1-8
Push-on mini-terminal block, balanced, bridging
Impedance: < 10 K ohm
Nominal Level: adjustable -56 dBu to 0 dBu
(7 dB step coarse gain adjustment)
Maximum Level: -65 dBu to +20 dBu
Echo Cancellation: 130 ms tail time (works with 12 dB of room gain)
Noise Cancellation: 6??15 dB attenuation
Phantom Power: 24 V, selectable
Line Inputs 9-12
Push-on mini-terminal block, balanced, bridging
Impedance: < 10 K ohm
Nominal Level: 0 dBu
Maximum Level: 20 dBu
Expansion Bus In/Out
Proprietary Network
RJ-45 (2), 1.9 Mbps
Category 5 twisted-pair cable 200’ maximum cable length between any two Converge Pro products
Autoswitching with Quality of Connection (QoC)
10/100 Mbps Ethernet Network Port
10/100 Mbps Ethernet PC Port
RJ-45 Connectors
Serial Command Protocol Only (Console software not supported on RS-232 port)
DB-9 female
9,600/19,200/38,400/57,600/115,200 baud rate; 8 bits, 1 stop, no parity
Hardware flow control on (default)/off
Version 2.0 compatible
Type B connector
DB-25 female A/B (2)
Inputs A/B: active low (pull to ground)
Outputs A/B: open collector, 40 VDC max,
40 mA each
+3.3 VDC pins (2) (300 mA over-current protected)
Configuration & Administration Software
Converge Console
Power Input Range
100??240 VAC; 50/60 Hz
Power Consumption
30 W Typical
Dimensions (L x D x H)
17.25” x 10.25” x 1.75”
43.8 x 26 x 4.5 cm
7.5 lbs/3.3375 kg unit weight
12 lbs/5.4kg shipping weight
Operating Temperature
14 deg F/-10 deg C to 122 deg F/50 deg C ambient unit temperature
Approvals & Compliance
AES48 compliant (audio equip grounding)
U.S.A. & Canada
CSA safety listed
EU Countries
RoHS compliant
WEEE compliant
See product manual for additional details
Optional Accessories
Converge Pro 880
Converge Pro 880T
Converge Pro 8i
Converge SR 1212
Converge SR 1212A
Converge Pro 840T
Converge Pro TH20
Tabletop Controller

SKU: CLO-INTRFCE-910151810 Category:

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